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Updated: Sep 20, 2025
Murine Excisional Wound Healing Model and Histological Morphometric Wound Analysis
Published on: August 21, 2020
Scarless wound healing: Current insights from the perspectives of TGF-β, KGF-1, and KGF-2
Wang Xiaojie1, Joshua Banda1, Hui Qi1
1Wenzhou Medical University, China.
Abstract:
The process of wound healing involves a complex and vast interplay of growth factors and cytokines that coordinate the recruitment and interaction of various cell types. A series of events involving inflammation, proliferation, and remodeling eventually leads to the restoration of the damaged tissue. Abrogation in the regulation of these events has been shown to result in excessive scarring or non-healing wounds. While the process of wound healing is not fully elucidated, it has been documented that the early events of wound healing play a key role in the outcome of the wound. Furthermore, high levels of inflammation have been shown to lead to scarring. The regulation of these events may result in scarless wound healing, especially in adults. The inhibition of transforming growth factor-β (TGF-β) and the administration of keratinocyte growth factors (KGF), KGF-1 and KGF-2, has in recent years yielded positive results in the acceleration of wound closure and reduced scarring. Here, we encapsulate recent knowledge on the roles of TGF-β, KGF1, and KGF2 in wound healing and scar formation and highlight the areas that need further investigation. We also discuss potential future directions for the use of growth factors in wound management.
Insights
Transforming growth factor-β (TGF-β) inhibition and keratinocyte growth factors (KGF), KGF-1 and KGF-2, show promise in accelerating wound healing and reducing scarring. Further research is needed to fully understand their roles and optimize their use in wound management.
Area of Science:
- Regenerative Medicine
- Dermatology
- Biochemistry
Background:
- Wound healing is a complex biological process involving inflammation, proliferation, and remodeling.
- Dysregulation of wound healing can lead to scarring or chronic non-healing wounds.
- Early wound healing events significantly influence the final outcome, with high inflammation linked to scarring.
Purpose of the Study:
- To review current knowledge on the roles of TGF-β, KGF1, and KGF2 in wound healing and scar formation.
- To identify areas requiring further investigation in growth factor-mediated wound repair.
- To discuss future therapeutic strategies utilizing growth factors for improved wound management.
Main Methods:
- Literature review of recent studies on growth factors in wound healing.
- Analysis of the molecular mechanisms of TGF-β, KGF1, and KGF2.
- Synthesis of findings regarding therapeutic interventions and future research directions.
Main Results:
- Inhibition of TGF-β and administration of KGFs (KGF-1, KGF-2) have demonstrated accelerated wound closure and reduced scarring.
- These growth factors play critical roles in coordinating cellular interactions during healing.
- Understanding their precise regulation is key to achieving scarless healing.
Conclusions:
- Targeting TGF-β and utilizing KGFs represent promising strategies for enhancing wound healing and minimizing scar formation.
- Further research is essential to elucidate the complete mechanisms and optimize clinical applications of these growth factors.
- Future directions include exploring novel combinations and delivery methods for advanced wound care.
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